LaCrosse, Wis., school district students, hosted by LaCrescent, Minn.-based Crest Precast, observed hoist pulleys, wire mesh benders, and band-saws in operation; they were introduced to principles of concrete mix design and chemical heat reaction; and, they learned that crushing produces jagged aggregates and smooth aggregates are shaped by river flows. The plant visit culminated in each student's casting of a decorative garden paver, using multicolored rock and special stones.

Crest Precast was one of several field trips provided for 17 sixth graders Û ESL [English as a Second Language] students, primarily Hmong, first- and second-generation Thai and Laotian immigrants--participating in a four-week physical science course targeting chemistry and simple machines. Among students' other first-hand experiences were a trip to a waste-to-electrical energy plant, attendance at an electronics robotics class offered by a local technical college, and a Mississippi River boat tour. Proving the success of the precast plant visit, the sixth graders on a county fair tour corrected a 4-H judge in his use of cement instead of concrete pavers.

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Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete. With an editorial focus on equipment and material technology, market development and management topics, Concrete Products provides practical information for management professionals on how to run their day to day business.